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#16
08-25-2009, 02:34 PM
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What happened to that $35 one your were telling me about?
__________________
2009 ML320 Bluetec 1985 300CD 1981 300TD  Past Mercedes 1979 300TD 1982 300TD 2000 E320 4Matic Wagon 1998 E430 1984 300SD 1980 300SD 
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#17
08-25-2009, 02:49 PM
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another alternative for diy..
Quote:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96677 Maintenance Free, No Moving Parts! Venturi-type vacuum pump removes moisture from air conditioning systems so you can safely add refrigerant. Easy to operate, just connect an air line and it pulls full vacuum within 2 minutes. Ideal for automotive air conditioners, home air conditioners, refrigerators, freezers, and more! Includes 1/2" ACME (R134a) and R12 connectors Vacuum level: 28.3" of mercury at sea level Air consumption: 4.2 CFM @ 90 PSI Air inlet: 1/4'' NPT Overall dimensions: 8-3/8" L X 5" W X 6-1/2" H Weight: 1.75 lbs. ITEM 96677-8VGA $15.99 http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96677
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#18
08-25-2009, 10:44 PM
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Oh Great Hunter! How many times usage do you think I'd get for $15.99?
I've seen those before on Ebay and assumed they might not finish one car. There's just such a huge price difference!
__________________
1979 240D, 4spd manual, Power Sunroof, manual windows, 147k miles, Pastel gray/Black MB Tex. 1991 300D 2.5 - Smokes like it's on Crack! 
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#19
08-26-2009, 02:00 AM
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OK
Quote:
You must be satisfied with a 28.0 inch vacuum, and have a high capacity air compressor = it uses a lot of air..
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#20
08-26-2009, 02:48 AM
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I wondered what venturi meant. Since I don't have an air compressor, that ones out for me. Thanks for your expert advice, sir.
__________________
1979 240D, 4spd manual, Power Sunroof, manual windows, 147k miles, Pastel gray/Black MB Tex. 1991 300D 2.5 - Smokes like it's on Crack!
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#21
08-26-2009, 04:37 AM
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Brandon, that one should be out for you due to the 'quality of the vacuum'... not enough pull to count on it being effective on every vehicle...you are trying to boil off water through very small tubes.... and a good distance....
There is a huge difference in a positive displacement ( piston movement of the air ) pump and a venturi type... which is about like hooking up to a vacuum cleaner suction.. Remember that good pumps are also available to RENT.... two weekends at most would be the normal need IF you did find leaks on the first weekend you needed to fix during the week..... then vacuum and install refrigerant the next weekend...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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